Ultron's Allies

Artifact spells you cast cost {1} less to cast.
{5}, Tap a nontoken creature you control with
Ultron in its name: Search your library for a card
named Wanda Maximoff, put it onto the
battlefield tapped, then shuffle your library.
{4}, Tap a nontoken creature you control with
Ultron in its name: Search your library for a card
named Pietro Maximoff, put it onto the
battlefield tapped, then shuffle your library.